Orchids love growing in, on and around cork potting mix. The benefit of cork potting mix for orchids is that holds virtually no water, lasts a long time and can be mixed with other mediums to create unique combinations for growing. Mixes made with cork are typically open and airy. If your plants have good root growth, your on your way to have a healthy orchid. Cork is not only for Orchids but any plant that requires epiphytic like conditions: for example Air Plants (tillandsia) and Bromeliads.
Small (3-8mm), Medium (10-20mm) and Large (20-30mm) Chips: On average one quart of potting media fills a 6″ wide pot; 2″ – 4″ wide pots or half of an 8″ wide pot with no plants.